Improvement in cultivator-couplings



J. PIERPONT.

Wheel-Cultivator.

No. 69,697.. Patented oct. 6, 1667.

NFETERS, FHOTQUTHOGRAFHER, WASHINGTONy D C.

UNITED STATES PATENT OFFICE.

JOSHUA PIERPON'I, OF LA HARPE, ILLINOIS,-ASSIGNOR TO HIMSELF AND i SIDNEY S. TUTTLE, OF SAME PLAGE.

IMPROVEMENT IN CULTIVATOR-COUPLINGS.

Specification forming part of Letters Patent No.r 69,697, dated October 8, 1867.

To all whom it may concern.'

Be it known thatI, JosnUA PIERPONT, of La Harpe, in the county of Hancock and State of Illinois, have invented a new and useful Improvement 'in Cultivator-(Jonplings; and I do hereby declare that the followingis a full, clear,

Vand exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming -partvof this specitication. A

Figure 1 is a top viewy of my improvement in the axle and coupling of cultivators. Fig. 2 is a detached sectional view of the same, taken iu the line Fig. 1. i

Similar letters of'reference indicate corresponding parts.

This invention relates to an improvement in the axle and coupling of cultivators; and it consists in casting the arms ofthe axle with a longitudinal groove on the upper side ot' each for receivingthe ends of a wrought-iron coni necting-bar, and a box or boxes on the under side for receiving a turn-table clevis, as hereinafter described.

The drawings represent a cnlt-ivator with plow-beams A A for working on both sides of a row of corn or other plants. B B are plows or shovels; G C, wheels, and D the draft-pole. The axle-arms a a are made dat, of castiron, and have a deep groove on the upper side tor receiving the ends c c of a wrought-iron connecting-bar, E, secured by rivets or otherwise. On the under side of the arms a a are castoue or more nipples or projecting boxes, e e, which tt into the head g of the clevis on the end of clevis is made of cast-iron, and for greater strength and lightness the sides 7c k are connected' at the bottom by a cross-piece, t'. The clevis head fg turns on the nipple e that receives the strain of the plow-beam to relieve the bolt, which is thus protected against the 'danger of breaking, while the cultivators are held steady, and admit of side motion freely. On the front sides of the arms a a lugs are cast with holes in them for holding the ends of the' pole-braces m m. This arrangement ot' the coupling, by means ot' a turn-table clevis and the arm of an axle, combines simplicity, utility, and durability.

`IzIaving thus described my invention, what I ela-im as new, and desire to secure by Letters Patent, is-

1. The turn-table clevis with' the head g, in combination with the axle-arm a, both constructed and operating substantially as and for the purpose herein described.

2. The combination of the clevis and the axle-arm a with the connecting-bar E, arranged and operating as and for the purpose described.

The above specification of my invention signed by me this 22d day of July, 1867.

, JOSHUA PIERIONT.

Witnesses:

CHARLES KEL'IER, LEWIS DU'rToN. 

